Who can solve these 2 questions ?

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Homework Help Overview

The discussion revolves around two physics problems related to momentum and energy conservation. The first problem involves an astronaut tossing objects in space and requires finding the velocity of a camera based on the conservation of momentum. The second problem concerns a popcorn kernel that pops and breaks into two pieces, with a focus on calculating the energy released during the popping event.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • The original poster expresses uncertainty about how to begin solving the problems and mentions breaking down forces into components. Some participants suggest finding the x and y components of the velocity vectors as a starting point.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problems. There is an indication that some guidance has been offered regarding the approach to take, particularly in breaking down the velocity components.

Contextual Notes

Participants are reminded of forum rules regarding providing assistance, emphasizing the importance of showing prior work before receiving help. The original poster indicates a lack of initial understanding or direction in solving the problems.

ehsanbs1
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who can solve these 2 questions ??

1. A 60kg astrounaut floating is space simutaneously tosses away a 14kg oxygen tank and a 5.8kg camera.the tank moves in the x direction at 1.6m/s,and the astraut recoils at 0.85m/s in a direction 200 degree counterclockwise from the x axis.find the velocity of the camera.(system of particles problem)

2. A 400 mg popcorn karnel is skittering across a nonstick frying pan at 8.2 cm/s when it pops and breaks into two equal mass pieces.if one piece ends up at rest how much energy was released in the popping?
 
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Well, I'm sure I could, but that wouldn't help you would it? It's also against the rules of the forum to help out with homework questions before you show some work. So, what have you done thus far?
 
well,the problem is that i have kinda no idaea where to start or what to do,i know that i have to break down the force and work for it on x component and y component and the formula i came up with is m1v1+m2v2=(m1+m2)vf,
 
ehsanbs1 said:
well,the problem is that i have kinda no idaea where to start or what to do,i know that i have to break down the force and work for it on x component and y component and the formula i came up with is m1v1+m2v2=(m1+m2)vf,
Then you DO know where to start! Find the x and y components of each velocity vector.

By the way, I'm going to move this to the physics homework area. I think it will get better response there.
 

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